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degen: add a lowinit option

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* src/tgbaalgos/degen.cc, src/tgbaalgos/degen.hh: New argument
to disable the "jump to the accepting level if the entering
state as an accepting self-loop" optimization.
* src/tgbaalgos/postproc.cc, src/tgbaalgos/postproc.hh: Check
the degen-lowinit option and pass it on to degeneralize().
* src/bin/spot-x.cc: Document it.
* src/tgbatest/degenlskip.test: Add some tests.
* src/tgbatest/ltl2ta.test: Update value.  We output less
accepting states now.
This commit is contained in:
Alexandre Duret-Lutz 2015-04-01 16:25:23 +02:00
parent 6e8170e386
commit 7bb183b929
7 changed files with 149 additions and 82 deletions
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7
src/tgbaalgos/postproc.cc
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@ -51,7 +51,8 @@ namespace spot
postprocessor::postprocessor(const option_map* opt)
: type_(TGBA), pref_(Small), level_(High),
degen_reset_(true), degen_order_(false), degen_cache_(true),
degen_lskip_(true), simul_(-1), scc_filter_(-1), ba_simul_(-1),
degen_lskip_(true), degen_lowinit_(false), simul_(-1),
scc_filter_(-1), ba_simul_(-1),
tba_determinisation_(false), sat_minimize_(0), sat_acc_(0),
sat_states_(0), state_based_(false), wdba_minimize_(true)
{
@ -61,6 +62,7 @@ namespace spot
degen_reset_ = opt->get("degen-reset", 1);
degen_cache_ = opt->get("degen-lcache", 1);
degen_lskip_ = opt->get("degen-lskip", 1);
degen_lowinit_ = opt->get("degen-lowinit", 0);
simul_ = opt->get("simul", -1);
scc_filter_ = opt->get("scc-filter", -1);
ba_simul_ = opt->get("ba-simul", -1);
@ -125,7 +127,8 @@ namespace spot
{
auto d = degeneralize(a,
degen_reset_, degen_order_,
degen_cache_, degen_lskip_);
degen_cache_, degen_lskip_,
degen_lowinit_);
if (ba_simul_ <= 0)
return d;
return do_ba_simul(d, ba_simul_);